Despite the 65kts jetstream, finally had some marginally usable seeing - and only a few clouds - and both occurred when it was dark!!! so got an RGB image of the planet with nice bright rings near opposition. yahoo - missed out near the last opposition due to seeing and clouds. Took a lot to extract a very soft but passable image from the jittery data, but current software can do wonders.
For interest, tried an LRGB in WINJUPOS to get rid of some of the colour mismatch issues, but that gave very strange data loss regions at the ring/planet boundries - not useful.
Hi Asi. You didn't mention the blue and green bits. The seeing was variable/bad enough to distort the three colour subs differently - on combining, this was the best alignment I could get, but there are still regions where one sub is providing more colour data than the others. This is exacerbated by stacking widely spaced subs in WINJUPOS. Tried a luminance layer to clean it up, but that didn't work either as noted - decided to manually select and desaturate the worst areas and just leave the rest as is. Normally wouldn't post data with such defects, but I wanted something on the board after 13 weeks of nothing at all.
anyway, have fixed up all the colour problems in the attached image . regards ray
Ray,
That's a really fine image and well processed. A lot of people don't realize all of the minor subtle effects that the atmosphere does to a colour image when you put it all together. Your monochrome is really beautiful and no colour defects as you say.
Allan
Thanks Allan. You are right - variable seeing can make a mess of multi-pass colour, especially when deconvolution is applied - a Bayer camera would have been more suitable for the conditions. I thought that the mono image would appeal to Asi's sense of humour, but it turned out to be quite nice looking in it's own right.
Hi Trevor. Thanks for the comments. No detail visible with this type of seeing. Frustrating to have such wonderful elevation and not be able to make good use of it.
Ray, John and Trevor,
Many thanks for all your posts and information that you pass on as I have learnt heaps from your posts as a newbie.
I'd love one or all of you to do an update on planetary imaging procedures.
Allan
Ray, John and Trevor,
Many thanks for all your posts and information that you pass on as I have learnt heaps from your posts as a newbie.
I'd love one or all of you to do an update on planetary imaging procedures.
Allan
I guess that things have changed a bit since the available guides were written - in particular, the software has advanced a lot. Will post a summary soon if it would be any help.
Hi Asi. You didn't mention the blue and green bits. The seeing was variable/bad enough to distort the three colour subs differently - on combining, this was the best alignment I could get, but there are still regions where one sub is providing more colour data than the others. This is exacerbated by stacking widely spaced subs in WINJUPOS. Tried a luminance layer to clean it up, but that didn't work either as noted - decided to manually select and desaturate the worst areas and just leave the rest as is. Normally wouldn't post data with such defects, but I wanted something on the board after 13 weeks of nothing at all.
anyway, have fixed up all the colour problems in the attached image . regards ray
Yes mono fixes anything to do with colour doesn't it. Green & blue limbs I'm used to seeing but the little patch of rose had me stumped that's all.
. regards ray
Yes mono fixes anything to do with colour doesn't it. Green & blue limbs I'm used to seeing but the little patch of rose had me stumped that's all.
